/*
 * Copyright (c) 2017. AnStudio + Medical Plus Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.anstudio.app.lhasa.common.utils;

public class StringUtils {
    public static boolean isEmpty(String str) {
        return str == null || str.length() <= 0;
    }

    public static Long getLong(String str) {
        if (isEmpty(str)) {
            return null;
        }

        Long ret = null;

        try {
            ret = Long.parseLong(str);
        } catch (Exception e) {
            return ret;
        }

        return ret;
    }

    public static boolean isLong(String str) {
        return getLong(str) == null;
    }
}
